Die for injection molding of thermosetting material

An injection molding and thermosetting technology, applied in the field of molds for injection molding of thermosetting materials, can solve problems such as waste waste and achieve the effect of saving thermosetting materials
CN103722693AInactive Publication Date: 2014-04-16ZHEJIANG DAAN MOLDING TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG DAAN MOLDING TECH
Publication Date
2014-04-16
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a die for the injection molding of a thermosetting material. The die comprises a moving die, a fixed die and a runner plate, wherein the runner plate is mounted on a moving die support plate, and is communicated with a discharging runner; a heat insulation layer is arranged between the moving die support plate and the moving die; a material cutting oil cylinder is fixed on the moving die; an output shaft of the material cutting oil cylinder is fixedly connected with a material cutting needle; the tail end of the material cutting needle is propped against a port of the discharging runner to isolate an injection molding die cavity from the discharging runner after the material cutting needle is driven to move forwards by the material cutting oil cylinder. According to the die, a preheated material in the discharging runner is kept in a semi-flowing state during mold stripping, and runner waste produced by a formed plastic part is avoided, so that production materials are saved.
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Description

technical field

[0001] The invention relates to an injection mold, especially a mold for injection molding of thermosetting materials. Background technique

[0002] Thermosetting materials can be softened into a semi-fluid state when heated for the first time. After being heated to a certain temperature and solidified into shape, they cannot be reheated and softened for use, and can only be recycled as waste products. Injection molding of thermosetting materials produces sprue gate waste, which cannot be recycled, resulting in a large amount of material waste. The patent No. is 201120276395.x, and the Chinese patent titled "thermosetting mold" discloses a thermosetting injection mold. This structure only discloses the general structure of the thermosetting injection mold. mold, and the structure of the thermal insulation runner plate, the heat insulation plate is also used between the runner plate and the movable mold for temperature insulation, the preheated thermosetting ...

Claims

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